comparative study of ISRM and ASTM methods for determination of Schmidt hardness and their performance to estimate the uniaxial compressive strength
Publish place: 4rd Iran International Conference on Structural Engineering
Publish Year: 1396
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ISSEE04_015
تاریخ نمایه سازی: 8 تیر 1398
Abstract:
The purpose of this study is to compare the ISRM and ASTM suggested methods for determination of Schmidt hardness (Sh) and their performance to estimate the rock strength. For this, seven granite and marble samples were collected from the processing plants around Shiraz, Fars province, Iran. The Sh of samples was obtained based on ISRM and ASTM suggested methods. Thus, uniaxial compressive strength test (UCS) was used to determine of samples strength. Simple regression technique was applied to investigate of correlation between samples UCS and Sh. According to regression analysis, the UCS shows a better correlation with Sh based on ISRM, R2= 0.85, when compare with ASTM method, R2=0.74.
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Authors
Amin Jamshidi
Assistant Professor, Lorestan University, Khorramabad, Iran